Contributed by Maine Historical Society
- MMN #74823
- print page
- download web image
Purchase a reproduction of this item on VintageMaineImages.com.
Description
The "pintype" insulator, with a socket in the base that screws on to a threaded wooden or metal "pin" mounted on the utility pole, was patented in 1865.
Earlier insulators were secured to the pins by various means (padding with burlap, or perhaps sticking down with tar).
Insulators keep the current in the grid and prevent it from "leaking" where it would be wasted or creating a hazard.
About This Item
- Title: Pintype electric insulator, ca. 1916
- Creator: Lapp Insulator Co.
- Creation Date: circa 1916
- Subject Date: circa 1916
- Media: Porcelain
- Local Code: 2004.090.4427
- Collection: Central Maine Power Company collection
- Object Type: Physical Object
Cross Reference Searches
Standardized Subject Headings
For more information about this item, contact:
Maine Historical Society485 Congress Street, Portland, ME 04101
(207) 774-1822 x230
Website
The copyright and related rights status of this item have not been evaluated. Please contact the contributing repository for more information.
Please post your comment below to share with others. If you'd like to privately share a comment or correction with MMN staff, please send us a message with this link.